(IgorWare Hasher is a free SHA-1, MD5 and CRC32 hash generator for Windows, both 64bit and 32bit versions are available
IgorWare Hasher Features
calculates SHA-1, MD5 and CRC32 hash for single file or text
supports hash verification files (*.sha, *.md5, *.sfv) compatible with Total and Free Commander
automatically loads verification files when found
supports UTF8 verification files
option to use upper-case or lower-case hash values
option to associate hasher with files in windows explorer (not portable)
supports file drag and drop
full UNICODE support
progress bar to monitor the hash calculation operation (also win7 progress bar in taskbar)